California Department of Fish and Wildlife (CDFW)

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  • Comparisons of Targeted-riffle and Reach-wide Benthic Macroinvertebrate Samples: Implications for Data Sharing in Stream-condition Assessments

    Comparisons of Targeted-riffle and Reach-wide Benthic Macroinvertebrate Samples: Implications for Data Sharing in Stream-condition Assessments

    Journal of the North American Benthological Society | January 1, 2007...
    Summary

    Recent comparisons of benthic macroinvertebrate (BMI) sampling protocols have shown that samples collected from different habitat types generally produce consistent stream classifications and...

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  • Conservation Strategy for Restoration of the Sacramento-San Joaquin Delta, Sacramento Valley and San Joaquin Valley Regions

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    Conservation Strategy for Restoration of the Sacramento-San Joaquin Delta, Sacramento Valley and San Joaquin Valley Regions

    CalFed Ecosystem Restoration Program | May 15, 2014...
    Summary

    The Conservation Strategy describes ERP goals and conservation priorities for Stage 2 of the CALFED Bay-Delta Program (CALFED) and was developed by the...

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  • DRERIP Ecosystem Conceptual Model: Chemical stressors

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    DRERIP Ecosystem Conceptual Model: Chemical stressors

    California Department of Fish and Wildlife | February 5, 2008...
    Summary

    The Sacramento-San Joaquin Delta ecosystem comprises many different habitat types, and is home to a large number of species. Thousands of chemical contaminants...

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  • DRERIP Ecosystem Conceptual Model: Delta Aquatic Foodweb

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    DRERIP Ecosystem Conceptual Model: Delta Aquatic Foodweb

    California Department of Fish and Wildlife | October 3, 2008...
    Summary

    This model is a stylization of the actual food web dynamics of the Sacramento?San Joaquin Delta, which are highly dynamic. The region itself...

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  • DRERIP Ecosystem Conceptual Model: Fish Habitat Linkages

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    DRERIP Ecosystem Conceptual Model: Fish Habitat Linkages

    California Department of Fish and Wildlife | January 19, 2008...
    Summary

    The Delta Regional Ecosystem Restoration Implementation Plan (DRERIP) is one of four regional plans intended to guide the implementation of the CALFED Ecosystem...

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  • DRERIP Ecosystem Conceptual Model: Floodplain

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    DRERIP Ecosystem Conceptual Model: Floodplain

    California Department of Fish and Wildlife | January 22, 2008...
    Summary

    Elements common to all models (Figure 1). Gray shapes (“plaques” in Word parlance) are other DRERIP models. Brown polygons are modifying factors. Pink...

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  • DRERIP Ecosystem Conceptual Model: Green sturgeon

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    DRERIP Ecosystem Conceptual Model: Green sturgeon

    California Department of Fish and Wildlife | December 27, 2008...
    Summary

    The purpose of this report is to develop a conceptual life history model of North American green sturgeon (Acipenser medirostris) and the factors...

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  • DRERIP Ecosystem Conceptual Model: Mercury

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    DRERIP Ecosystem Conceptual Model: Mercury

    California Department of Fish and Wildlife | January 24, 2008...
    Summary

    Mercury has been identified as an important contaminant in the Delta, based on elevated concentrations of methylmercury (a toxic, organic form that readily...

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  • DRERIP Ecosystem Conceptual Model: Potamcorbula amurensis

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    DRERIP Ecosystem Conceptual Model: Potamcorbula amurensis

    California Department of Fish and Wildlife | January 1, 1970...
    Summary

    Potamocorbula amurensis is a pest in the San Francisco Estuary (hereafter SFE) due to its ability to heavily graze pelagic food resources and...

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  • DRERIP Ecosystem Conceptual Model: Riparian vegetation

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    DRERIP Ecosystem Conceptual Model: Riparian vegetation

    California Department of Fish and Wildlife | November 14, 2008...
    Summary

    The Sacramento-San Joaquin Delta has immense municipal, agricultural, biological and industrial importance to the economy and livelihood of California and in turn to...

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  • DRERIP Ecosystem Restoration Model: Tidal marsh

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    DRERIP Ecosystem Restoration Model: Tidal marsh

    California Department of Fish and Wildlife | October 1, 2008...
    Summary

    Tidal marshes are a subset of estuarine wetlands defined by the presence of emergent vegetation types uniquely adapted to sheltered intertidal zones of...

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  • Mercury on a landscape scale—Balancing regional export with wildlife health

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    Mercury on a landscape scale—Balancing regional export with wildlife health

    U.S. Geological Survey (USGS), U.S. Environmental Protection Agency (EPA), U.S. Bureau of Land Management (BLM), California Department of Fish and Wildlife (CDWF), California Water Boards - Central Valley Regional Water Quality Control Board, Cosumnes River Preserve | June 26, 2018...
    Summary

    The Cosumnes River watershed requires a 57–64 percent reduction in loads to meet the new Delta methylmercury (MeHg) total maximum daily load allocation,...

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  • Summary report: Green sturgeon, longfin smelt, and dredging operations in the San Francisco Estuary

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    Summary report: Green sturgeon, longfin smelt, and dredging operations in the San Francisco Estuary

    San Francisco Estuary Institute | December 1, 2009...
    Summary

    In 2009, California Department of Fish and Game Commission listed longfin smelt (Spirinchus thaleichthys) as threatened, and NOAA formally adopted “take” provisions for...

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  • The California Stream Condition Index (CSCI): A New Statewide Biological Scoring Tool for Assessing the Health of Freshwater Streams

    The California Stream Condition Index (CSCI): A New Statewide Biological Scoring Tool for Assessing the Health of Freshwater Streams

    California State Water Resources Control Board | September 1, 2015...
    Summary

    California’s dramatic environmental diversity supports a broad array of natural stream types throughout the state. Bioassessment of freshwater stream and rivers is especially challenging...

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